package Lab02.test23;

import java.util.Calendar;
import java.util.Date;
import java.util.Scanner;

public class Test {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.println("请输入你的生日，格式形如:2017-09-21:");
        Calendar calendar=Calendar.getInstance();
        String str = scanner.nextLine();
        String year = str.substring(0,4);
        String month = str.substring(5,7);
        String day = str.substring(8);
        calendar.set(Integer.parseInt(year),Integer.parseInt(month),Integer.parseInt(day));
        System.out.println("输出对应的是星期几:");
        int week = calendar.get(Calendar.DAY_OF_WEEK);
        switch (week){
            case 1:System.out.println("MONDAY");break;
            case 2:System.out.println("TUESDAY");break;
            case 3:System.out.println("WEDNSSDAY");break;
            case 4:System.out.println("THESDAY");break;
            case 5:System.out.println("FIRDAY");break;
            case 6:System.out.println("SATUATFAY");break;
            default:System.out.println("SUNDAY");break;
        }
        Date date2=new Date();
        calendar.set(2017,Integer.parseInt(month),Integer.parseInt(day));
        Date date1 = calendar.getTime();
        long countDay = (date1.getTime() - date2.getTime())/(24*60*60*1000);
             if(countDay < 0){
                 calendar.set(2018,Integer.parseInt(month),Integer.parseInt(day));
                 date1 = calendar.getTime();
                 countDay = (date1.getTime() - date2.getTime())/(24*60*60*1000);
             }
            System.out.println("距离你的生日还有"+countDay+"天。");
    }
}
